1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e4a10eb4874614a807e108ed1d536b1ba1cd60de43f24b83f85e817bb3ad540. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/22bab0d7-7892-43d5-ab8f-bcffa492261b.json and https://artists.proofprofile.net/proofs/artist/22bab0d7-7892-43d5-ab8f-bcffa492261b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34a8c4de6bd17c8e11ff74663023bad4113045f0a06f62d10acf7ddfbb0b1ec7. Chain 2 (Bitcoin): anchored in block 957717 (2026-07-12T14:54:03Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAFL2100380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c671a5a4c0a30ebbcd4f11a251d62a1df8c183cd49b712622a71173e19073af. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAFL2100461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35842d5b1b3b2f2f94101363a7304d6b64d3cffd55d80c44cdf613cf5fa45b97. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAFL2100437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35ca2ec2e6981a4fcf24f9d221df9ce79f9d647cb1807baf1da148120bd1ff08. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAFL2100562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2648fec307082ff7944d67c9e282511ecd67015c43133f7f0a0b23cfd001b705. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAFL2100401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0378a2fb7dca35175721c953a303d44f969308cd49e9385f2735267f6c7a0ebd. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAFL2100552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53b5274b5d300c1aa9c2a6a7926c23e359b6b547ef43517820c67185b2380149. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:45:39Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAFL2100624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6365ef4a88cb46df2996899fcce57d6990d7cd714b58b2c8719ad226887cb7c. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAFL2100610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6d188a0479ef183dcf33161951176c51c340ec9d6b375bc721d36e5737e7d81. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAFL2100574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54c757289ad2a21d272058e6c1bc2e7b9252902f6c85cab897dbddeac7d0bdbd. Chain 2 (Bitcoin): anchored in block 957714 (2026-07-12T14:35:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAFL2100594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67b928a44fb4c48499b0cdb4addd282a01899f7cce12ac8b8d3763b5556c9929. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAFL2100509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9eb9e1b815b7c0d544839e20ba4dcd1b0cbc17f3f1db632d954b43ebe2dfe91a. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:49:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAFL2100482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ee93e0d7c529deb374d9d93424b41e66efe222ddb5a771937b84814ec0df83f. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAFL2100534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x751da75e7f4e4f794a157ec72b2de0f273969be42fa9aefb092f048cecbe41cc. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAGC2281843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87d6c220ce489140dde5075f08a1ed3c43fa1f29e114bc6795afa27d563a2801. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAGC2281955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda372dfa87e968d1fa09303780b5510f9a30e83bb31ba06eab968276a63692ff. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAGC2282207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac30c576c1b8910f6fcbaa5a0d4c2550db8f4e4693d68d18f014e7c292fc639c. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAGC2282211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7b232bcb7f65e84b20aab1d3c7fadec18a62372c5226d459c73880eadf2f16f. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAGC2282220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91ec73ac299368fa2a6e715961280f75bec455be9678a250ff5e9998ae0b68ef. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAGC2282226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc1a12e097722fffd683be099df9beaded14be69b545a3662825625a03db341d. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAGC2282235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebc1dac0add9f30ca92648d9bb12df6fe49191a8c821a0bdc5b73f59c8136927. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAGC2282241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a3ffe394c37fa5826dda0a584e4dcc0cfe17d038a3b0a89a8704c61762f1812. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAGC2282247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7b2d786dc2caf42f93bf525cd6e27002872bb93be51c7961b6e7784bdc3e15b. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAGC2282250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9619e6785e3839211ee0697092cdc05c9eb26b2c31bfe5a407dfae9190450aa. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAGC2282256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51b63adba1ad1df68da3ee6892bfdf0b528a9527e710241e081185fb1e295622. Chain 2 (Bitcoin): anchored in block 957744 (2026-07-12T19:15:44Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAGC2282257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2294350a17d891b8817f14c1fbbd687c87316384aa9262889ab592213c6b311a. Chain 2 (Bitcoin): anchored in block 958776 (2026-07-19T20:11:59Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAFP2131989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8908bbd92e976509f7a9ca47fc22b85b7b2ce880ebc7aa778bab18414d3d43c9. Chain 2 (Bitcoin): anchored in block 958523 (2026-07-18T08:54:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAFT2170202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ccd0304603f308cffcfc22142149cce3ad02296e72a109087d029a765b96930. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAFT2170006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ccee6f83cb21f7f2487605acf2c4bf64f2aa9aa51df75970e600f8703721115. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T04:08:03Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAFT2170052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd58a54cd22df3383cbc4bebbb483554cd0d1a51f1c73f7f6d3d9f357791664f1. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAFT2170252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x860d56f3eb7a23e7d2863a9b0bfbdf1a9abe8192327636033a6949a23005eabe. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAFT2170263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x060d6550e7bbccc10374a1687249cab4d47ba79e26b4451ff01fb56ad62a9517. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T11:03:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAFT2170004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb881e5a58d0f6c5909852973e7333cf9722d35142d8dabc5f4c1f50fc7b1a14d. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAFT2169970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f6cc5aee367385d21677ea6ecac2806b484d60f8fd1b5633a8dd530e0db3fc9. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-17T02:23:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAFT2170293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3f4682235a7aaf13c197cc46046b9ec29e6c4794593f36469542ff0b381661e. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T20:03:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAFT2170045.
Wake Me up When September Ends - Kalimba Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52330967fa0704954acb5fc693c183d1d2fae1014b3714ea5859c1ea2e3cc762. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAGD2234576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5fcd667298db6dc1f90f9db8274ca87d66916092d3d798ceffd210743821197. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T10:58:02Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAGE2200989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12721ab9aef0a001144c52ebc1ab9fefd55747cd2e72ee1833e0b09873314bbf. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAGE2201057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f42fc065696352d9bfde71a3d5381a4e81d77af2ed9a8b680a2ee93de3e9127. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:27:39Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAGE2201053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01dc3754087e4f46faceb8ae7b77a2b4b3ed79f583e67ad4f97260483d863287. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAGK2259298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3219da348614507d6b400ba0812bfa1ce337456dfc45ea36599e44f45b74fd29. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAGK2259300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39e7535fc232d923846bea5a565179e2f3ed357f85bad2ec17cb5989dc2b7324. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAHM2301035.